/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.2.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 18:59:11,265 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 18:59:11,268 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 18:59:11,291 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 18:59:11,291 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 18:59:11,292 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 18:59:11,294 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 18:59:11,295 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 18:59:11,297 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 18:59:11,298 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 18:59:11,299 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 18:59:11,300 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 18:59:11,300 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 18:59:11,301 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 18:59:11,302 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 18:59:11,303 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 18:59:11,304 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 18:59:11,305 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 18:59:11,306 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 18:59:11,308 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 18:59:11,309 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 18:59:11,310 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 18:59:11,311 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 18:59:11,312 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 18:59:11,315 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 18:59:11,315 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 18:59:11,315 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 18:59:11,316 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 18:59:11,316 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 18:59:11,317 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 18:59:11,317 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 18:59:11,318 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 18:59:11,319 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 18:59:11,319 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 18:59:11,320 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 18:59:11,321 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 18:59:11,321 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 18:59:11,322 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 18:59:11,322 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 18:59:11,323 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 18:59:11,323 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 18:59:11,324 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 18:59:11,347 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 18:59:11,347 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 18:59:11,348 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 18:59:11,349 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 18:59:11,349 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 18:59:11,349 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 18:59:11,349 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 18:59:11,350 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 18:59:11,350 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 18:59:11,350 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 18:59:11,350 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 18:59:11,350 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 18:59:11,351 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 18:59:11,351 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 18:59:11,351 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 18:59:11,351 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 18:59:11,351 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 18:59:11,352 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 18:59:11,352 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 18:59:11,352 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 18:59:11,352 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 18:59:11,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 18:59:11,353 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 18:59:11,353 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 18:59:11,353 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 18:59:11,353 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 18:59:11,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 18:59:11,354 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 18:59:11,354 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 18:59:11,354 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 18:59:11,668 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 18:59:11,688 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 18:59:11,692 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 18:59:11,694 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 18:59:11,695 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 18:59:11,696 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.2.ufo.UNBOUNDED.pals.c [2020-10-12 18:59:11,770 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/015da9cc5/49f408297fe24aa9a7082f9909838bc9/FLAG5905f8c54 [2020-10-12 18:59:12,367 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 18:59:12,368 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.2.ufo.UNBOUNDED.pals.c [2020-10-12 18:59:12,390 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/015da9cc5/49f408297fe24aa9a7082f9909838bc9/FLAG5905f8c54 [2020-10-12 18:59:12,692 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/015da9cc5/49f408297fe24aa9a7082f9909838bc9 [2020-10-12 18:59:12,702 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 18:59:12,704 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 18:59:12,708 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 18:59:12,708 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 18:59:12,712 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 18:59:12,714 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:59:12" (1/1) ... [2020-10-12 18:59:12,718 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@546c585d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:59:12, skipping insertion in model container [2020-10-12 18:59:12,718 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:59:12" (1/1) ... [2020-10-12 18:59:12,727 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 18:59:12,789 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 18:59:13,244 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:59:13,254 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 18:59:13,340 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:59:13,359 INFO L208 MainTranslator]: Completed translation [2020-10-12 18:59:13,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:59:13 WrapperNode [2020-10-12 18:59:13,360 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 18:59:13,361 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 18:59:13,361 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 18:59:13,361 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 18:59:13,374 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:59:13" (1/1) ... [2020-10-12 18:59:13,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:59:13" (1/1) ... [2020-10-12 18:59:13,392 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:59:13" (1/1) ... [2020-10-12 18:59:13,392 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:59:13" (1/1) ... [2020-10-12 18:59:13,421 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:59:13" (1/1) ... [2020-10-12 18:59:13,450 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:59:13" (1/1) ... [2020-10-12 18:59:13,456 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:59:13" (1/1) ... [2020-10-12 18:59:13,464 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 18:59:13,465 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 18:59:13,465 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 18:59:13,465 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 18:59:13,466 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:59:13" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 18:59:13,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 18:59:13,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 18:59:13,558 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 18:59:13,558 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-12 18:59:13,558 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-12 18:59:13,558 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-12 18:59:13,559 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-12 18:59:13,560 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-12 18:59:13,560 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-12 18:59:13,560 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 18:59:13,560 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-12 18:59:13,560 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 18:59:13,560 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-12 18:59:13,561 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-12 18:59:13,561 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-12 18:59:13,562 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-12 18:59:13,562 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 18:59:13,562 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 18:59:13,562 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-12 18:59:13,562 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-12 18:59:13,562 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-12 18:59:13,563 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-12 18:59:13,563 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-12 18:59:13,563 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-12 18:59:13,563 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-12 18:59:13,564 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-12 18:59:13,565 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 18:59:13,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 18:59:13,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 18:59:15,004 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 18:59:15,005 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 18:59:15,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:59:15 BoogieIcfgContainer [2020-10-12 18:59:15,012 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 18:59:15,014 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 18:59:15,014 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 18:59:15,017 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 18:59:15,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 06:59:12" (1/3) ... [2020-10-12 18:59:15,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@790784f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:59:15, skipping insertion in model container [2020-10-12 18:59:15,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:59:13" (2/3) ... [2020-10-12 18:59:15,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@790784f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:59:15, skipping insertion in model container [2020-10-12 18:59:15,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:59:15" (3/3) ... [2020-10-12 18:59:15,021 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.2.ufo.UNBOUNDED.pals.c [2020-10-12 18:59:15,032 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 18:59:15,041 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 18:59:15,055 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 18:59:15,082 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 18:59:15,083 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 18:59:15,083 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 18:59:15,083 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 18:59:15,083 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 18:59:15,084 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 18:59:15,084 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 18:59:15,084 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 18:59:15,111 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states. [2020-10-12 18:59:15,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-12 18:59:15,128 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:59:15,129 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:59:15,130 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:59:15,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:59:15,137 INFO L82 PathProgramCache]: Analyzing trace with hash -1394986335, now seen corresponding path program 1 times [2020-10-12 18:59:15,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:59:15,146 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [727488829] [2020-10-12 18:59:15,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:59:15,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:15,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:16,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:16,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 18:59:16,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:16,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 679 [2020-10-12 18:59:16,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:16,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:59:16,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-12 18:59:16,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:59:16,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 18:59:16,836 WARN L193 SmtUtils]: Spent 457.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-12 18:59:16,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:59:16,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:16,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:16,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:16,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:59:16,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:16,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 18:59:16,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:16,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:59:16,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:59:16,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:59:16,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:16,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:59:16,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:16,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:17,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:17,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-12 18:59:17,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:17,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-12 18:59:17,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:17,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:59:17,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:59:17,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:59:17,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:17,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:59:17,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:17,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:17,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:17,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:59:17,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:17,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:59:17,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:17,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:59:17,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:59:17,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:59:17,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:17,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:59:17,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:17,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:17,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:17,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:59:17,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:17,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:59:17,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:17,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:59:17,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:59:17,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:59:17,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:17,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 18:59:17,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:17,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:17,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:17,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:59:17,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:17,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:59:17,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:17,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:59:17,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:59:17,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:59:17,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:59:17,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-12 18:59:17,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:17,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:17,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:17,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:59:17,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:17,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:59:17,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:17,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:59:17,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:59:17,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:59:17,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:17,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-12 18:59:17,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:17,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:17,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:17,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:59:17,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:17,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:59:17,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:17,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:59:17,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:59:17,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:59:17,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:17,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 18:59:17,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:17,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:17,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:17,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:59:17,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:17,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:59:17,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:17,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:59:17,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:59:17,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:59:17,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:17,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:59:17,326 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [727488829] [2020-10-12 18:59:17,328 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:59:17,328 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 18:59:17,329 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352910812] [2020-10-12 18:59:17,335 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 18:59:17,335 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:59:17,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 18:59:17,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-12 18:59:17,353 INFO L87 Difference]: Start difference. First operand 365 states. Second operand 7 states. [2020-10-12 18:59:18,627 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:59:19,140 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:59:20,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:59:20,191 INFO L93 Difference]: Finished difference Result 560 states and 943 transitions. [2020-10-12 18:59:20,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 18:59:20,196 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 108 [2020-10-12 18:59:20,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:59:20,214 INFO L225 Difference]: With dead ends: 560 [2020-10-12 18:59:20,215 INFO L226 Difference]: Without dead ends: 400 [2020-10-12 18:59:20,220 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-12 18:59:20,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2020-10-12 18:59:20,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 360. [2020-10-12 18:59:20,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-10-12 18:59:20,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 619 transitions. [2020-10-12 18:59:20,316 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 619 transitions. Word has length 108 [2020-10-12 18:59:20,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:59:20,317 INFO L479 AbstractCegarLoop]: Abstraction has 360 states and 619 transitions. [2020-10-12 18:59:20,317 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 18:59:20,317 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 619 transitions. [2020-10-12 18:59:20,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-12 18:59:20,323 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:59:20,324 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:59:20,326 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 18:59:20,326 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:59:20,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:59:20,327 INFO L82 PathProgramCache]: Analyzing trace with hash -501499997, now seen corresponding path program 1 times [2020-10-12 18:59:20,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:59:20,328 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [790102930] [2020-10-12 18:59:20,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:59:20,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:20,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:21,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:21,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 18:59:21,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:21,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1493 [2020-10-12 18:59:21,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:21,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:59:21,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-12 18:59:21,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:59:21,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:22,363 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-12 18:59:22,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:59:22,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:22,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:22,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:22,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:59:22,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:22,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 18:59:22,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:22,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:59:22,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:59:22,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:59:22,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:59:22,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:59:22,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:22,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:22,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:22,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-12 18:59:22,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:22,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 315 [2020-10-12 18:59:22,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:22,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:59:22,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:59:22,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-12 18:59:22,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:59:22,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:59:22,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:22,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:22,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:22,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:59:22,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:22,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:59:22,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:22,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:59:22,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 18:59:22,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:59:22,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-12 18:59:22,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-12 18:59:22,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:22,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:22,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:22,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:59:22,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:22,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:59:22,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:22,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:59:22,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:59:22,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:59:22,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:23,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-12 18:59:23,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:23,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:23,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:23,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:59:23,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:23,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:59:23,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:23,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:59:23,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:59:23,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:59:23,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:23,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-12 18:59:23,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:23,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:23,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:23,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:59:23,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:23,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:59:23,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:23,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:59:23,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:59:23,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:59:23,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:23,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-12 18:59:23,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:23,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:23,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:23,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:59:23,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:23,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:59:23,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:23,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:59:23,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:59:23,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:59:23,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:23,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-12 18:59:23,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:23,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:23,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:23,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:59:23,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:23,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:59:23,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:23,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:59:23,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:59:23,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:59:23,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:23,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:59:23,208 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [790102930] [2020-10-12 18:59:23,208 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:59:23,208 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 18:59:23,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894927785] [2020-10-12 18:59:23,210 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 18:59:23,210 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:59:23,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 18:59:23,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-12 18:59:23,212 INFO L87 Difference]: Start difference. First operand 360 states and 619 transitions. Second operand 13 states. [2020-10-12 18:59:25,526 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-12 18:59:25,954 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 257 [2020-10-12 18:59:26,442 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 261 [2020-10-12 18:59:26,833 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2020-10-12 18:59:27,588 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:59:30,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:59:30,099 INFO L93 Difference]: Finished difference Result 558 states and 935 transitions. [2020-10-12 18:59:30,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 18:59:30,099 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 108 [2020-10-12 18:59:30,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:59:30,105 INFO L225 Difference]: With dead ends: 558 [2020-10-12 18:59:30,106 INFO L226 Difference]: Without dead ends: 400 [2020-10-12 18:59:30,108 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-12 18:59:30,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2020-10-12 18:59:30,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 360. [2020-10-12 18:59:30,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-10-12 18:59:30,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 573 transitions. [2020-10-12 18:59:30,156 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 573 transitions. Word has length 108 [2020-10-12 18:59:30,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:59:30,156 INFO L479 AbstractCegarLoop]: Abstraction has 360 states and 573 transitions. [2020-10-12 18:59:30,157 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 18:59:30,157 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 573 transitions. [2020-10-12 18:59:30,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-12 18:59:30,163 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:59:30,164 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:59:30,164 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 18:59:30,164 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:59:30,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:59:30,165 INFO L82 PathProgramCache]: Analyzing trace with hash 1869459725, now seen corresponding path program 1 times [2020-10-12 18:59:30,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:59:30,165 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1548148703] [2020-10-12 18:59:30,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:59:30,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:30,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:30,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:30,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:32,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:32,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:35,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:35,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-12 18:59:35,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:59:35,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-10-12 18:59:35,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:35,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 18:59:35,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-12 18:59:35,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 18:59:35,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:59:35,695 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-12 18:59:35,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:59:35,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:35,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:35,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:35,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:59:35,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:35,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:59:35,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:35,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:59:35,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:59:35,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:59:35,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:35,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:59:35,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:35,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:36,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:36,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-12 18:59:36,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:36,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 275 [2020-10-12 18:59:36,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:36,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:59:36,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:59:36,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 18:59:36,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 18:59:36,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-12 18:59:36,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:36,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:36,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:36,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:59:36,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:36,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:59:36,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:36,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:59:36,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:59:36,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:59:36,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:36,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 18:59:36,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:36,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:36,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:36,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:59:36,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:36,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 18:59:36,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:36,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:59:36,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:59:36,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:59:36,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:36,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-12 18:59:36,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:36,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:36,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:36,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:59:36,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:36,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 18:59:36,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:36,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:59:36,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:59:36,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:59:36,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:36,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 18:59:36,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:36,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:36,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:36,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:59:36,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:36,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 18:59:36,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:36,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:59:36,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:59:36,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:59:36,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:36,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-12 18:59:36,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:36,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:36,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:36,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:59:36,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:36,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 18:59:36,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:36,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:59:36,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:59:36,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:59:36,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:59:36,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-12 18:59:36,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:36,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:36,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:59:36,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:59:36,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:59:36,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:59:36,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:59:36,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:59:36,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:59:36,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:59:36,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:59:36,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:59:36,585 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1548148703] [2020-10-12 18:59:36,585 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:59:36,585 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 18:59:36,586 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590669572] [2020-10-12 18:59:36,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 18:59:36,588 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:59:36,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 18:59:36,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2020-10-12 18:59:36,589 INFO L87 Difference]: Start difference. First operand 360 states and 573 transitions. Second operand 16 states. [2020-10-12 18:59:36,977 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-12 18:59:39,029 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-12 18:59:39,395 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-12 18:59:39,772 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-12 18:59:40,079 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 18:59:40,526 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 18:59:40,686 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:59:41,205 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:59:41,370 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:59:41,509 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:59:42,191 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:59:42,372 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 18:59:42,513 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 18:59:42,657 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:59:43,656 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:59:43,831 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:59:43,968 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:59:44,145 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:59:44,411 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:59:45,478 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-12 18:59:45,611 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:59:46,001 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 257 [2020-10-12 18:59:46,358 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-12 18:59:46,835 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-12 18:59:46,994 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:59:48,317 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 18:59:48,485 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-12 18:59:48,640 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 18:59:48,793 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:59:48,964 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:59:49,128 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 18:59:49,280 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:59:49,425 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:59:50,656 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 18:59:50,835 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:59:50,995 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-12 18:59:51,185 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 18:59:51,342 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:59:51,538 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:59:51,723 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 18:59:51,878 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:59:53,075 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-12 18:59:53,264 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:59:53,415 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 18:59:53,617 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-12 18:59:53,772 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 18:59:53,987 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 18:59:54,166 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:59:55,404 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 18:59:55,557 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 18:59:55,737 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-12 18:59:55,900 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 18:59:56,049 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:59:56,262 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 18:59:58,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:59:58,382 INFO L93 Difference]: Finished difference Result 2115 states and 3409 transitions. [2020-10-12 18:59:58,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2020-10-12 18:59:58,384 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 153 [2020-10-12 18:59:58,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:59:58,399 INFO L225 Difference]: With dead ends: 2115 [2020-10-12 18:59:58,399 INFO L226 Difference]: Without dead ends: 1963 [2020-10-12 18:59:58,406 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2063 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=1268, Invalid=4894, Unknown=0, NotChecked=0, Total=6162 [2020-10-12 18:59:58,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1963 states. [2020-10-12 18:59:58,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1963 to 1551. [2020-10-12 18:59:58,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1551 states. [2020-10-12 18:59:58,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1551 states to 1551 states and 2489 transitions. [2020-10-12 18:59:58,546 INFO L78 Accepts]: Start accepts. Automaton has 1551 states and 2489 transitions. Word has length 153 [2020-10-12 18:59:58,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:59:58,547 INFO L479 AbstractCegarLoop]: Abstraction has 1551 states and 2489 transitions. [2020-10-12 18:59:58,547 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 18:59:58,547 INFO L276 IsEmpty]: Start isEmpty. Operand 1551 states and 2489 transitions. [2020-10-12 18:59:58,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-12 18:59:58,553 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:59:58,553 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:59:58,554 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 18:59:58,554 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:59:58,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:59:58,554 INFO L82 PathProgramCache]: Analyzing trace with hash -926886387, now seen corresponding path program 1 times [2020-10-12 18:59:58,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:59:58,555 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [285516009] [2020-10-12 18:59:58,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:59:58,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:59:58,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:58,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:59,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:59,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:59:59,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:03,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:03,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-12 19:00:03,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 19:00:03,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-12 19:00:03,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:03,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 19:00:03,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-12 19:00:03,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 19:00:03,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:04,003 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-12 19:00:04,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:00:04,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:04,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:04,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:04,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:00:04,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:04,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 19:00:04,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:04,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:00:04,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:04,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:00:04,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:04,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 19:00:04,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:04,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:04,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:04,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-12 19:00:04,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:04,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-12 19:00:04,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:04,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 19:00:04,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:04,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-12 19:00:04,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:04,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-12 19:00:04,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:04,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:04,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:04,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 19:00:04,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:04,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 19:00:04,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:04,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:00:04,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:04,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 19:00:04,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:04,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 19:00:04,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:04,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:04,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:04,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:00:04,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:04,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 19:00:04,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:04,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:00:04,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:00:04,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 19:00:04,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:04,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-12 19:00:04,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:04,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:04,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:04,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:00:04,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:04,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 19:00:04,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:04,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:00:04,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:04,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 19:00:04,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:04,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 19:00:04,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:04,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:04,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:04,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:00:04,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:04,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 19:00:04,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:04,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:00:04,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:04,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 19:00:04,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:04,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-12 19:00:04,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:04,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:04,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:04,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:00:04,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:04,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 19:00:04,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:04,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:00:04,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:04,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 19:00:04,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:04,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-12 19:00:04,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:04,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:04,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:04,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:00:04,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:04,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 19:00:04,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:04,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:00:04,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-12 19:00:04,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 19:00:04,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:04,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:00:04,552 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [285516009] [2020-10-12 19:00:04,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:00:04,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 19:00:04,553 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756797308] [2020-10-12 19:00:04,554 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 19:00:04,554 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:00:04,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 19:00:04,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-12 19:00:04,559 INFO L87 Difference]: Start difference. First operand 1551 states and 2489 transitions. Second operand 11 states. [2020-10-12 19:00:05,062 WARN L193 SmtUtils]: Spent 447.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-12 19:00:07,016 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-12 19:00:07,315 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 19:00:07,889 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 19:00:09,481 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 19:00:09,737 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 19:00:11,565 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-12 19:00:11,930 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-12 19:00:12,755 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 19:00:12,921 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-12 19:00:13,197 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 19:00:13,922 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 19:00:14,090 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 19:00:15,587 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 19:00:15,737 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 19:00:16,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:00:16,373 INFO L93 Difference]: Finished difference Result 6253 states and 10040 transitions. [2020-10-12 19:00:16,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-12 19:00:16,374 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 154 [2020-10-12 19:00:16,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:00:16,397 INFO L225 Difference]: With dead ends: 6253 [2020-10-12 19:00:16,398 INFO L226 Difference]: Without dead ends: 4910 [2020-10-12 19:00:16,403 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=335, Invalid=1147, Unknown=0, NotChecked=0, Total=1482 [2020-10-12 19:00:16,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4910 states. [2020-10-12 19:00:16,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4910 to 3893. [2020-10-12 19:00:16,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3893 states. [2020-10-12 19:00:16,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3893 states to 3893 states and 6239 transitions. [2020-10-12 19:00:16,627 INFO L78 Accepts]: Start accepts. Automaton has 3893 states and 6239 transitions. Word has length 154 [2020-10-12 19:00:16,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:00:16,628 INFO L479 AbstractCegarLoop]: Abstraction has 3893 states and 6239 transitions. [2020-10-12 19:00:16,628 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 19:00:16,628 INFO L276 IsEmpty]: Start isEmpty. Operand 3893 states and 6239 transitions. [2020-10-12 19:00:16,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-12 19:00:16,632 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:00:16,632 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:00:16,633 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 19:00:16,633 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:00:16,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:00:16,633 INFO L82 PathProgramCache]: Analyzing trace with hash -1765954876, now seen corresponding path program 1 times [2020-10-12 19:00:16,634 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:00:16,634 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [440670213] [2020-10-12 19:00:16,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:00:16,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:16,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:16,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:17,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:17,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:17,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:21,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:21,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-12 19:00:21,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 19:00:21,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5094 [2020-10-12 19:00:21,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:21,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 19:00:21,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 95 [2020-10-12 19:00:21,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 19:00:21,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:22,117 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-12 19:00:22,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:00:22,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:22,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:22,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:22,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:00:22,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:22,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 19:00:22,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:22,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:00:22,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:22,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:00:22,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:22,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 19:00:22,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:22,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:22,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:22,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-12 19:00:22,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:22,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-12 19:00:22,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:22,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 19:00:22,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:22,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-12 19:00:22,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:22,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-12 19:00:22,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:22,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:22,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:22,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 19:00:22,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:22,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 19:00:22,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:22,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:00:22,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:22,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 19:00:22,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:22,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 19:00:22,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:22,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:22,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:22,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:00:22,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:22,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 19:00:22,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:22,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:00:22,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:22,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 19:00:22,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:22,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-12 19:00:22,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:22,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:22,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:22,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:00:22,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:22,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 19:00:22,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:22,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:00:22,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:00:22,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 19:00:22,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:00:22,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 19:00:22,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:22,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:22,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:22,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:00:22,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:22,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 19:00:22,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:22,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:00:22,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:22,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 19:00:22,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:00:22,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-12 19:00:22,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:22,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:22,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:22,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:00:22,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:22,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 19:00:22,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:22,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:00:22,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:22,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 19:00:22,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:00:22,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-12 19:00:22,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:22,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:22,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:22,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 19:00:22,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:22,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 19:00:22,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:22,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:00:22,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 19:00:22,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 19:00:22,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:00:22,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:00:22,702 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [440670213] [2020-10-12 19:00:22,703 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:00:22,703 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 19:00:22,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371391795] [2020-10-12 19:00:22,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 19:00:22,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:00:22,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 19:00:22,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-12 19:00:22,705 INFO L87 Difference]: Start difference. First operand 3893 states and 6239 transitions. Second operand 11 states. [2020-10-12 19:00:23,177 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-12 19:00:25,003 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-12 19:00:25,300 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 19:00:25,694 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 19:00:26,158 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 19:00:26,929 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 19:00:27,112 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 19:00:27,309 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 19:00:28,549 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 19:00:28,756 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 19:00:29,829 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-12 19:00:30,179 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-12 19:00:31,169 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 19:00:31,322 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 19:00:31,582 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 19:00:32,238 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 19:00:32,662 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 19:00:32,857 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-12 19:00:33,182 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 19:00:33,974 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 19:00:34,162 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 19:00:34,326 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 19:00:35,156 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 19:00:35,335 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 19:00:36,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:00:36,305 INFO L93 Difference]: Finished difference Result 18306 states and 29323 transitions. [2020-10-12 19:00:36,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-12 19:00:36,306 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 155 [2020-10-12 19:00:36,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:00:36,387 INFO L225 Difference]: With dead ends: 18306 [2020-10-12 19:00:36,388 INFO L226 Difference]: Without dead ends: 14621 [2020-10-12 19:00:36,403 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 375 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=335, Invalid=1147, Unknown=0, NotChecked=0, Total=1482 [2020-10-12 19:00:36,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14621 states. [2020-10-12 19:00:37,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14621 to 11504. [2020-10-12 19:00:37,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11504 states. [2020-10-12 19:00:37,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11504 states to 11504 states and 18388 transitions. [2020-10-12 19:00:37,226 INFO L78 Accepts]: Start accepts. Automaton has 11504 states and 18388 transitions. Word has length 155 [2020-10-12 19:00:37,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:00:37,227 INFO L479 AbstractCegarLoop]: Abstraction has 11504 states and 18388 transitions. [2020-10-12 19:00:37,227 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 19:00:37,227 INFO L276 IsEmpty]: Start isEmpty. Operand 11504 states and 18388 transitions. [2020-10-12 19:00:37,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-10-12 19:00:37,231 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:00:37,232 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:00:37,232 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 19:00:37,232 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:00:37,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:00:37,233 INFO L82 PathProgramCache]: Analyzing trace with hash -2058959196, now seen corresponding path program 1 times [2020-10-12 19:00:37,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:00:37,233 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1462631667] [2020-10-12 19:00:37,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:00:37,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:37,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:37,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:37,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:38,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:38,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:42,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:42,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 19:00:42,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 19:00:42,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-12 19:00:42,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:42,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 19:00:42,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-10-12 19:00:42,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 19:00:42,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 19:00:42,789 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-12 19:00:42,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:00:42,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:42,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:42,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:42,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:00:42,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:42,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 19:00:42,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:42,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:00:42,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:42,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:00:42,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:00:42,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 19:00:42,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:42,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:43,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:43,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-12 19:00:43,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:43,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-10-12 19:00:43,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:43,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 19:00:43,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:43,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-12 19:00:43,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:00:43,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-12 19:00:43,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:43,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:43,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:43,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 19:00:43,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:43,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 19:00:43,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:43,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:00:43,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:43,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 19:00:43,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:00:43,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 19:00:43,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:43,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:43,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:43,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:00:43,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:43,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 19:00:43,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:43,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:00:43,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:43,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 19:00:43,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:00:43,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-12 19:00:43,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:43,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:43,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:43,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:00:43,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:43,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 19:00:43,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:43,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:00:43,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:43,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 19:00:43,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:00:43,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 19:00:43,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:43,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:43,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:43,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:00:43,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:43,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 19:00:43,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:43,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:00:43,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:00:43,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 19:00:43,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:00:43,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-12 19:00:43,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:43,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:43,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:43,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:00:43,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:43,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 19:00:43,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:43,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:00:43,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:00:43,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 19:00:43,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:43,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-12 19:00:43,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:43,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:43,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:00:43,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 19:00:43,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:00:43,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 19:00:43,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:00:43,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:00:43,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 19:00:43,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 19:00:43,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:00:43,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:00:43,560 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1462631667] [2020-10-12 19:00:43,561 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:00:43,561 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 19:00:43,561 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090679679] [2020-10-12 19:00:43,562 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 19:00:43,562 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:00:43,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 19:00:43,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-12 19:00:43,565 INFO L87 Difference]: Start difference. First operand 11504 states and 18388 transitions. Second operand 11 states. [2020-10-12 19:00:43,949 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-12 19:00:45,944 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-12 19:00:46,533 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 19:00:47,022 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 125 [2020-10-12 19:00:47,410 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 19:00:47,536 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 19:00:47,679 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 19:00:49,067 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-12 19:00:49,405 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-12 19:00:50,392 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 19:00:50,541 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 19:00:50,743 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 19:00:51,172 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 19:00:51,708 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 19:00:51,879 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 19:00:52,119 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 19:00:52,559 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 19:00:53,104 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-12 19:00:53,410 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 127 [2020-10-12 19:00:53,765 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 124 [2020-10-12 19:00:54,494 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 19:00:54,628 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 19:00:54,790 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 19:00:56,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:00:56,804 INFO L93 Difference]: Finished difference Result 63319 states and 101165 transitions. [2020-10-12 19:00:56,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-12 19:00:56,805 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 156 [2020-10-12 19:00:56,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:00:57,014 INFO L225 Difference]: With dead ends: 63319 [2020-10-12 19:00:57,014 INFO L226 Difference]: Without dead ends: 52023 [2020-10-12 19:00:57,061 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=335, Invalid=1147, Unknown=0, NotChecked=0, Total=1482 [2020-10-12 19:00:57,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52023 states. [2020-10-12 19:00:59,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52023 to 40826. [2020-10-12 19:00:59,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40826 states. [2020-10-12 19:00:59,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40826 states to 40826 states and 65085 transitions. [2020-10-12 19:00:59,338 INFO L78 Accepts]: Start accepts. Automaton has 40826 states and 65085 transitions. Word has length 156 [2020-10-12 19:00:59,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:00:59,338 INFO L479 AbstractCegarLoop]: Abstraction has 40826 states and 65085 transitions. [2020-10-12 19:00:59,339 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 19:00:59,339 INFO L276 IsEmpty]: Start isEmpty. Operand 40826 states and 65085 transitions. [2020-10-12 19:00:59,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-12 19:00:59,343 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:00:59,344 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:00:59,344 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 19:00:59,344 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:00:59,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:00:59,344 INFO L82 PathProgramCache]: Analyzing trace with hash 1691123835, now seen corresponding path program 1 times [2020-10-12 19:00:59,345 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:00:59,345 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [226398416] [2020-10-12 19:00:59,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:00:59,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:00:59,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:59,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:00:59,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:00,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:00,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:04,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:04,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-12 19:01:04,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 19:01:04,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-12 19:01:04,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:04,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 19:01:04,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-10-12 19:01:04,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 19:01:04,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:04,927 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-12 19:01:04,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:01:04,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:04,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:04,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:04,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:01:04,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:04,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 19:01:04,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:04,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:01:04,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:01:04,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:01:04,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:04,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 19:01:04,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:04,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:05,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:05,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-12 19:01:05,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:05,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-12 19:01:05,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:05,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 19:01:05,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:01:05,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-12 19:01:05,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:05,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-12 19:01:05,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:05,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:05,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:05,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 19:01:05,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:05,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 19:01:05,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:05,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:01:05,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:01:05,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 19:01:05,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:05,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 19:01:05,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:05,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:05,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:05,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:01:05,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:05,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 19:01:05,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:05,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:01:05,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:01:05,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 19:01:05,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:05,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-12 19:01:05,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:05,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:05,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:05,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:01:05,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:05,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 19:01:05,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:05,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:01:05,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:01:05,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 19:01:05,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:05,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 19:01:05,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:05,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:05,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:05,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:01:05,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:05,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 19:01:05,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:05,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:01:05,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:01:05,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 19:01:05,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:05,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-12 19:01:05,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:05,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:05,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:05,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:01:05,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:05,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 19:01:05,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:05,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:01:05,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:01:05,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 19:01:05,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:05,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-12 19:01:05,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:05,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:05,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:05,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 19:01:05,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:05,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 19:01:05,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:05,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:01:05,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 19:01:05,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 19:01:05,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:05,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:01:05,422 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [226398416] [2020-10-12 19:01:05,422 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:01:05,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 19:01:05,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930001677] [2020-10-12 19:01:05,423 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 19:01:05,423 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:01:05,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 19:01:05,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-12 19:01:05,424 INFO L87 Difference]: Start difference. First operand 40826 states and 65085 transitions. Second operand 11 states. [2020-10-12 19:01:05,807 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-12 19:01:07,479 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-12 19:01:07,731 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 19:01:08,072 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 19:01:08,425 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 19:01:08,942 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 125 [2020-10-12 19:01:09,971 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-12 19:01:10,315 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-12 19:01:11,336 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 19:01:11,481 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 19:01:11,782 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 19:01:11,969 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 19:01:12,700 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 19:01:12,939 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 19:01:13,327 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 19:01:13,586 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 19:01:14,335 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 19:01:14,509 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 19:01:14,863 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 19:01:15,098 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-12 19:01:15,850 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-12 19:01:16,169 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 129 [2020-10-12 19:01:16,499 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-12 19:01:17,448 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 19:01:22,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:01:22,325 INFO L93 Difference]: Finished difference Result 259167 states and 413849 transitions. [2020-10-12 19:01:22,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-12 19:01:22,326 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 157 [2020-10-12 19:01:22,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:01:22,975 INFO L225 Difference]: With dead ends: 259167 [2020-10-12 19:01:22,975 INFO L226 Difference]: Without dead ends: 218549 [2020-10-12 19:01:23,141 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=335, Invalid=1147, Unknown=0, NotChecked=0, Total=1482 [2020-10-12 19:01:23,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218549 states. [2020-10-12 19:01:31,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218549 to 171308. [2020-10-12 19:01:31,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171308 states. [2020-10-12 19:01:32,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171308 states to 171308 states and 273164 transitions. [2020-10-12 19:01:32,023 INFO L78 Accepts]: Start accepts. Automaton has 171308 states and 273164 transitions. Word has length 157 [2020-10-12 19:01:32,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:01:32,023 INFO L479 AbstractCegarLoop]: Abstraction has 171308 states and 273164 transitions. [2020-10-12 19:01:32,023 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 19:01:32,023 INFO L276 IsEmpty]: Start isEmpty. Operand 171308 states and 273164 transitions. [2020-10-12 19:01:32,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-12 19:01:32,029 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:01:32,029 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:01:32,029 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 19:01:32,029 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:01:32,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:01:32,030 INFO L82 PathProgramCache]: Analyzing trace with hash -894213773, now seen corresponding path program 1 times [2020-10-12 19:01:32,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:01:32,030 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1577873937] [2020-10-12 19:01:32,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:01:32,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:32,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:32,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:32,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:33,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:33,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:37,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:37,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-12 19:01:37,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 19:01:37,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-12 19:01:37,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:37,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:01:37,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-10-12 19:01:37,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 19:01:37,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:37,500 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-12 19:01:37,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:01:37,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:37,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:37,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:37,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:01:37,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:37,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 19:01:37,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:37,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:01:37,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:01:37,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:01:37,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:37,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 19:01:37,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:37,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:37,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:37,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-12 19:01:37,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:37,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-12 19:01:37,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:37,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:01:37,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:01:37,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-12 19:01:37,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:37,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-12 19:01:37,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:37,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:37,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:37,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 19:01:37,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:37,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 19:01:37,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:37,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:01:37,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:01:37,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 19:01:37,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:37,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 19:01:37,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:37,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:37,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:37,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:01:37,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:37,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 19:01:37,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:37,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:01:37,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:01:37,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 19:01:37,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:37,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-12 19:01:37,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:37,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:37,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:37,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:01:37,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:37,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 19:01:37,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:37,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:01:37,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:01:37,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 19:01:37,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:37,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 19:01:37,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:37,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:37,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:37,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:01:37,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:37,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 19:01:37,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:37,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:01:37,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:01:37,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 19:01:37,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:37,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-12 19:01:37,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:37,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:37,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:37,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:01:37,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:37,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 19:01:37,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:37,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:01:37,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 19:01:37,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:01:37,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:37,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-12 19:01:37,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:01:37,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:01:37,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:01:37,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 19:01:37,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:01:37,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 19:01:37,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:01:37,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:01:37,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-12 19:01:37,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:01:37,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:01:37,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:01:37,906 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1577873937] [2020-10-12 19:01:37,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:01:37,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 19:01:37,907 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113509084] [2020-10-12 19:01:37,907 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 19:01:37,908 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:01:37,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 19:01:37,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-12 19:01:37,908 INFO L87 Difference]: Start difference. First operand 171308 states and 273164 transitions. Second operand 10 states. [2020-10-12 19:01:38,316 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-12 19:01:40,181 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 19:01:40,543 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 19:01:41,193 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 19:01:41,491 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 19:01:43,073 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 19:01:43,600 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 19:01:43,970 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2020-10-12 19:01:46,402 WARN L193 SmtUtils]: Spent 2.35 s on a formula simplification that was a NOOP. DAG size: 129 [2020-10-12 19:01:46,704 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 19:01:51,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:01:51,295 INFO L93 Difference]: Finished difference Result 449722 states and 715994 transitions. [2020-10-12 19:01:51,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-12 19:01:51,295 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 159 [2020-10-12 19:01:51,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:01:52,180 INFO L225 Difference]: With dead ends: 449722 [2020-10-12 19:01:52,180 INFO L226 Difference]: Without dead ends: 278622 [2020-10-12 19:01:52,327 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2020-10-12 19:01:52,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278622 states. [2020-10-12 19:02:08,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278622 to 214247. [2020-10-12 19:02:08,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214247 states. [2020-10-12 19:02:08,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214247 states to 214247 states and 343931 transitions. [2020-10-12 19:02:08,662 INFO L78 Accepts]: Start accepts. Automaton has 214247 states and 343931 transitions. Word has length 159 [2020-10-12 19:02:08,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:02:08,663 INFO L479 AbstractCegarLoop]: Abstraction has 214247 states and 343931 transitions. [2020-10-12 19:02:08,663 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 19:02:08,663 INFO L276 IsEmpty]: Start isEmpty. Operand 214247 states and 343931 transitions. [2020-10-12 19:02:08,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-12 19:02:08,669 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:02:08,669 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:02:08,669 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 19:02:08,670 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:02:08,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:02:08,670 INFO L82 PathProgramCache]: Analyzing trace with hash -1690931086, now seen corresponding path program 1 times [2020-10-12 19:02:08,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:02:08,670 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1674374719] [2020-10-12 19:02:08,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:02:08,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:08,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:08,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:08,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:09,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:09,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:13,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:13,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-10-12 19:02:13,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 19:02:13,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-12 19:02:13,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:13,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 19:02:13,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-12 19:02:13,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-12 19:02:13,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:14,100 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-12 19:02:14,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:02:14,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:14,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:14,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:14,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:02:14,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:14,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 19:02:14,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:14,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:02:14,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:02:14,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:02:14,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:14,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 19:02:14,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:14,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:14,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:14,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-12 19:02:14,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:14,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-12 19:02:14,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:14,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:02:14,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:02:14,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 19:02:14,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:14,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-12 19:02:14,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:14,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:14,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:14,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 19:02:14,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:14,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 19:02:14,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:14,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:02:14,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:02:14,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 19:02:14,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:14,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 19:02:14,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:14,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:14,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:14,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:02:14,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:14,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 19:02:14,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:14,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:02:14,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:02:14,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 19:02:14,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:14,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-12 19:02:14,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:14,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:14,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:14,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:02:14,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:14,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 19:02:14,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:14,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:02:14,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:02:14,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 19:02:14,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:14,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-12 19:02:14,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:14,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:14,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:14,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 19:02:14,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:14,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 19:02:14,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:14,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 19:02:14,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:02:14,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 19:02:14,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:14,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-12 19:02:14,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:14,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:14,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:14,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 19:02:14,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:14,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 19:02:14,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:14,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 19:02:14,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 19:02:14,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 19:02:14,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:14,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-12 19:02:14,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:02:14,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:02:14,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:02:14,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 19:02:14,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:02:14,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 19:02:14,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:02:14,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:02:14,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 19:02:14,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 19:02:14,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:02:14,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:02:14,660 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1674374719] [2020-10-12 19:02:14,661 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:02:14,661 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 19:02:14,661 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419421319] [2020-10-12 19:02:14,661 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 19:02:14,661 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:02:14,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 19:02:14,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2020-10-12 19:02:14,662 INFO L87 Difference]: Start difference. First operand 214247 states and 343931 transitions. Second operand 16 states. [2020-10-12 19:02:15,280 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-12 19:02:17,197 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-12 19:02:17,558 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-12 19:02:17,933 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 257 [2020-10-12 19:02:18,227 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 19:02:18,659 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 19:02:18,823 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 19:02:19,383 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2020-10-12 19:02:19,634 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 19:02:19,788 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 19:02:19,929 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 19:02:20,557 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 254 [2020-10-12 19:02:20,907 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 19:02:21,055 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 19:02:21,198 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 19:02:21,409 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 19:02:22,172 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 19:02:22,339 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-12 19:02:22,499 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 19:02:23,610 WARN L193 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 260 [2020-10-12 19:02:24,010 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 257 [2020-10-12 19:02:24,158 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 19:02:24,543 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-12 19:02:24,700 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 19:02:26,022 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-12 19:02:26,202 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-12 19:02:26,373 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 19:02:26,612 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 19:02:26,834 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 19:02:27,364 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-12 19:02:27,954 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-12 19:02:28,143 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 19:02:28,326 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-12 19:02:28,516 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 19:02:28,870 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 19:02:29,398 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-12 19:02:29,993 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 19:02:30,507 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-12 19:02:30,687 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 19:02:30,860 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 19:02:31,635 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 19:02:32,419 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 132 [2020-10-12 19:02:32,610 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-12 19:02:32,794 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-12 19:02:33,429 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 131